Scientific BackgroundThe main goal of Jacobson’s research is to understand better severe atmospheric problems, such as air pollution and global warming, and develop and analyze large-scale clean-renewable energy solutions to them.
To address this goal, he has developed and applied three-dimensional atmosphere-biosphere-ocean computer models and solvers to simulate air pollution, weather, climate, and renewable energy. In 1993-4, he developed the world’s first computer model to treat the mutual feedback to weather and climate of both air pollution gases and particles, and in 2001, the first coupled air-pollution-weather-climate model to telescope from the global to urban scale.

In 2000, he applied this model to discover that black carbon, the main component of soot pollution particles, might be the second-leading cause of global warming in terms of radiative forcing, after carbon dioxide. This and subsequent papers provided the original scientific basis for several laws and regulations on black carbon emission controls worldwide. His findings that carbon dioxide domes over cities and carbon dioxide buildup since preindustrial times have enhanced air pollution mortality through its feedback to particles and ozone served as a scientific basis for the Environmental Protection Agency’s 2009 approval of the first U.S. regulation of carbon dioxide (the California waiver).

With respect to solvers, in 1993, he developed the world's fastest ordinary differential equation solver in a three-dimensional model for a given level of accuracy and applied it to atmospheric chemistry. He subsequently developed solvers for cloud and aerosol coagulation, breakup, condensation/evaporation, freezing, dissolution, chemical equilibrium, and lightning; air-sea exchange; ocean chemistry; greenhouse gas absorption; and surface processes.

With respect to energy, in 2001 he published a paper in Science examining the ability of the U.S. to convert a large fraction of its energy to wind power. In 2005, his group developed the first world wind map based on data alone. His students subsequently published papers on reducing the variability of wind energy by interconnecting wind farms; on integrating solar, wind, geothermal, and hydroelectric power into the grid; and on wave power.

In 2009, he coauthored a plan, featured on the cover of Scientific American, to power the world for all purposes with wind, water, and sunlight (WWS). In 2010, he appeared in a TED debate rated as the sixth all-time science and technology TED talk. In 2011, he cofounded The Solutions Project, a group that combines science, business, and culture to develop and implement science based clean-energy plans for states and countries. In 2013, his group developed individual WWS energy plans for each of the 50 United States.

To date, he has published two textbooks of two editions each and over 145 peer-reviewed journal articles. He has testified three times for the U.S. Congress. Nearly a thousand researchers have used computer models he has developed. In 2005, he received the American Meteorological Society Henry G. Houghton Award for ’significant contributions to modeling aerosol chemistry and to understanding the role of soot and other carbon particles on climate.’ In 2013, he received an American Geophysical Union Ascent Award for ’his dominating role in the development of models to identify the role of black carbon in climate change’ and the Global Green Policy Design Award for the ’design of analysis and policy framework to envision a future powered by renewable energy.’ He has also served on the Energy Efficiency and Renewables advisory committee to the U.S. Secretary of Energy and was invited to talk about his world and U.S. clean-energy plans on the Late Show with David Letterman.

Most-accessed article April-June 2007; second-most-accessed article July-September
2007, in the Journal, Environmental Science and Technology, "Effects
of ethanol (E85) versus gasoline on cancer and mortality in the United States." (link)

Partial share of the 2007 Nobel Peace Prize as a research contributor to
and reviewer of the Intergovernmental Panel on Climate Change 3rd and 4th
Assessment Reports, cited for "efforts to build up and disseminate
greater knowledge about man-made climate change, and to lay the foundations
for the measures that are needed to counteract such change."

Editor Highlight in Geophysical Research letters for "On
the causal link between carbon dioxide and air pollution mortality," February
2008. (link)

Top three most popular research news stories of 2008 published by Environmental Research Web: "Carbon dioxide increase causes air pollution deaths," a news story on "On the causal link between carbon dioxide and air pollution mortality." (link)

Top three "Most Interesting Science and Technology News of 2008", by Blogher, "Review of solutions to global warming, air pollution, and energy security," (link to story)(link to article)

Economist.com "noteworthy journal article" for January 2009, "Review of solutions to global warming, air pollution, and energy security." (link to story)(link to article)

Top-downloaded paper, "Influence of future anthropogenic emissions on climate, natural emissions, and air quality," all Journal of Geophysical Research Journals, May 2009.(link)

All-time top downloaded paper in Energy and Environmental Science as of June 2012, "Review of solutions to global warming, air pollution, and energy security." (link)

One of the top two science stories of 2009 according to Science of the Times, "A path to sustainable energy by 2030," Scientific American, November 2009.(link)

American Geophysical Union Research Spotlight, "Short-term effects of controlling fossil-fuel soot, biofuel soot and gases, and methane on climate, Arctic ice, and air pollution health," July 29, 2010.(link)

Top-cited first author, Stanford University School of Engineering, all departments, for first-authored papers published since Jan. 1, 1994.

Second-most-downloaded paper from January-December 2011 in Energy Policy, "Providing all global energy with wind, water, and solar power, Part II: Reliability, system and transmission costs, and policies." (link)

Global Green Award, Policy Design, New York City, December 3, 2013, “Honoring the ‘design’ of analysis and policy framework to envision a future powered by renewable energy. Research and work focused on New York and California has provided an alternative path to the future,” (link)

Control of black carbon, the most efficient method of controlling global warming, Air Pollution Modeling and Simulation conference, Paris, France, April 9-13, 2001.

Control of fossil-fuel particulate black carbon and organic matter, possibly the most effective method of slowing global warming, Workshop on Climate and Air Quality, U.S. Environmental Protection Agency, Research Triangle Park, North Carolina, December 3-5, 2001.

Current and future effects of black carbon on climate, Sixth ETH Conference on Nanoparticle Measurement, Zurich, Switzerland, August 19th-21st, 2002.

Addressing global warming through a large-scale wind/hydrogen program, Symposium on Environmental and Occupational Safety, University of Puerto Rico at Mayaguez, November 6-7, 2003.

Advances in computer modeling of air pollution and climate, Third Canadian Workshop on Air Quality, Quebec City, Canada, March 24-26, 2004.

The climate response of soot, accounting for its feedback to snow and sea ice albedo and emissivity, Distinguished Lecture Series, Laboratory for Atmospheres at NASA Goddard Space Flight Center, November 18, 2004.

The role of black carbon as a factor in climate change and its impact on public health, Testimony in the U.S. House of Representatives Committee on Oversight and Government Reform, Washington, D.C, October 18, 2007.

Comparative effects of vehicles technologies and fuels on climate and air pollution, Plenary presentation for EnviroSymp2007, Sustainable Solutions, University of Copenhagen, Denmark, Nov. 5-6, 2007.

A true-renewable-energy solution to global warming, Hon. Al Gore and Mrs. Tipper Gore, and the Alliance for Climate Protection, New York City, New York, January 10, 2008.

The relative impact of carbon dioxide on air pollution health problems in California versus the rest of the U.S., Testimony in the U.S. House of Representatives Select Committee on Energy Independence and Global Warming, Washington, D.C, April 9, 2008.

Briefing on the effects of carbon dioxide on air pollution mortality, American Meteorological Society, Washington, D.C., May 16, 2008.

Computer modeling of the atmosphere: Identifying causes and effects of and evaluating solutions to global warming, SimBuild Conference, Berkeley, California, July 30, 2008.

Effects of biofuels versus new vehicle technologies on air pollution, global warming, and landuse, Biofuels in the Midwest, a Discussion, Chicago, Illinois, September 5-7, 2008.

29th Annual Conference, American Association for Aerosol Research, Aerosol contribution to global warming, Arctic ice loss, and air pollution mortality and how to control it through large-scale renewable energy, Portland, Oregon, Oct. 25-29, 2010.

A plan for a sustainable future using wind, water, and sun, The Minerals, Metals, and Materials Society (TMS) Annual Meeting, San Diego, California, February 28, 2010.

Steering into the Storm, a Sustainability Event at the Richard Ivey School of Business, University of Western Ontario, Ontario, Canada, March 9, 2010.

Powering the world with wind, water, and sunlight, Singularity University Summer Program, NASA Ames Research Center, Mountain View, California, July 8, 2011.

A plan for a sustainable future using wind, water, and the sun, Green tech for a sustainable future with focus on smart grid, Swedish Institute & Consulate General of Sweden, Stanford, California, November 2, 2011.

A plan for a sustainable future using wind, water, and the sun, HEAL Utah, Salt Lake City, Utah, November 15, 2011. (link)

A plan for a sustainable future using wind, water, and the sun, dasHAUS, German American Chamber of Commerce, San Francisco, California, February 24, 2012.

A plan for a sustainable future using wind, water, and the sun, Advancing Renewables in the Midwest, Columbia, Missouri, March 26, 2012. (link)

A plan to power the world with wind, water, and sun, 62nd Annual Kansas University Environmental Engineering Conference, Lawrence, KS, April 18, 2012.

How to power New York, the U.S., and the world with wind, water, and sunlight, Barnfest, Catskills Mountains, New York, July 14, 2012. (link)

Planning for a sustainable future with wind, water, and the sun, Renewable Energy Conference, Selkirk College, British Columbia, October 26, 2012. (link)

Addressing global warming, air pollution, and energy security with wind, water, and sunlight worldwide, in the U.S., and in New York State, Inaugural lecture, Schwartz Center for Economic Policy Analysis speaker series, New School Department of Economics, New York City, New York, November 15, 2012. (video)

Clean energy plans for the U.S. and individual states, Presentation to politicians, business people, philanthropists, and journalists, including Sen. John Kerry, Sen Kirsten Gillibrand, Chris Matthews, Washington, D.C., February 27, 2013.

Powering the world, the U.S., and individual states with wind, water, and sunlight, Yale Climate and Energy Congress Annual Symposium, Yale University, New Haven, Connecticut, February 7, 2013. (link)

Powering individual states, the U.S., and the world with wind, water, and sunlight, Mid-America PEV Exchange, March 12, 2013.

Powering the world, U.S. and individual states for all purpose with wind, water, and sunlight, presentation at the White House to the Deputy Assistant to the President for Energy and Climate Change, Washington, D.C., April 2, 2013.

Powering the world, U.S., and individual states for all purposes with wind, water, and sun, American Meteorological Society Washington Forum, Washington, D.C., April 2, 2013. (link)

A plan to power the world for all purposes with wind, water, and the sun, Renewables – from vision to value, St. Gallen Forum for Management of Renewable Energies, St. Gallen, Switzerland, May 23-24, 2013. (link)

Roadmaps to power California and the world with wind, water, and the sun, Next 10 Forum, Napa Valley, California, June 12, 2013.

Powering New York with wind, water, and sunlight, New York crossroads event, Albany, New York, June 17, 2013. (link)

50-State plans for powering the U.S. with wind, water, and solar power for all purposes, Distinguished Speaker Series, University of Colorado, Boulder, February 20, 2014 (video)

Roadmaps for transitioning Washington State and all other 49 U.S. states to wind, water, and solar power for all purposes, Solutions Project, New York City, March 13, 2014.

Plans to convert California and the other 49 states to Wind, Water, and Solar Power, Keynote speaker, 24th Annual Clean Air Awards, San Francisco, California, April 24, 2014 (link)

A roadmap for transitioning California to wind, water, and solar power for all purposes, Dirty Energy/Clean Solutions conference, 350.org, San Francisco, California, May 9, 2014. (video)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Inaugural lecture in Prof. Michio Yanai lecture series, Department of Atmospheric Sciences, University of California at Los Angeles, May 7, 2014.

Roadmaps for transitioning Washington State and all other 49 U.S. states to wind, water, and solar power for all purposes, Daniel L. and Irma Evans Lecture, Department of Civil and Environmental Engineering, University of Washington, May 15, 2014 (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, North American Student Energy Summit (NASES), Columbia University, New York City, New York, June 20, 2014 (link)

Roadmaps for transitioning the U.S. to wind, water, and solar power for all purpose, Presentation to the Vice President of the United States, Mr. Joe Biden, Washington, D.C., August 27, 2014.

Roadmaps for transitioning the U.S. to wind, water, and solar power for all purpose, The Economics of Sustainability Conference, San Francisco, California, October 8, 2014 (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Meeting the renewable energy challenge symposium, University of Iowa, October 16, 2014 (link)

Roadmaps for transitioning California to wind, water, and solar power for all purpose, Presentation to the Governor Brown’s Staff, Sacramento, California October 27, 2014

Roadmaps for transitioning California to wind, water, and solar power for all purpose, VERGE, Palace Hotel, San Francisco, California, October 30, 2014 (video)

Roadmaps for transitioning the world to wind, water, and solar power for all purposes, Open Caucus, Senate of Canada, Ottawa, Canada, November 26, 2014 (audio)

Roadmaps for transitioning Washington State to wind, water, and solar power for all purpose, Presentation to the Governor Inslee’s Staff, Olympia, Washington, December 1, 2014 (presented remotely)

Roadmaps for transitioning California to wind, water, and solar power for all purpose, 15th National Conference and Global Forum on Science, Policy, and the Environment, Washington, D.C., January 27, 2015 (link)

Bioethics Forum XIII: The great New York Power shift, Andy Revkin, moderator, Pace University, Pleasantville, New York, March 12, 2015 (presented remotely) (link)

Roadmaps for transitioning all 50 United States to wind, water, and solar power for all purposes, 6th Annual Dean’s Lecture and Awards Ceremony, Physicians for Social Responsibility and the University of South Florida, Tampa, Florida, March 19, 2015 (link)

Application of a sparse-matrix, vectorized Gear-type code (SMVGEAR) in a new air pollution modeling system, Symposium on Numerical Algorithms for Air Pollution Models in the Third International Congress on Industrial and Applied Mathematics (ICIAM), Hamburg, Germany, July 3-7, 1995.

Chemical mechanism solver techniques and implementation of mechanism, Workshop on Modeling Chemistry in Clouds and Mesoscale Models, National Center for Atmospheric Research, March 6-8, 2000.

Development of a global-through-urban scale nested and coupled air pollution and weather forecast model and application to the SARMAP field campaign, Institute for Mathematics and its Applications Annual Program, Reactive flow and Transport Phenomena, U. of Minnesota, March 15-19, 2000.

A study of the mixing state of aerosols and the effect of the mixing state on global direct forcing, Workshop on Atmospheric Composition, Biogeochemical Cycles and Climate Change, Aspen Global Change Institute, Aspen, Colorado, August 11-19, 2000.

Control of black carbon, the most effective means of slowing global warming, International Conference on Computational Science (ICCS), San Francisco, California, May 28-30, 2001.

Control of fossil-fuel particulate black carbon and organic matter, the most effective method slowing global warming, CIESIN/USEPA//Environment Canada workshop, Photoxidants, Particles, and Haze across the Arctic and North Atlantic: Transport, Observations, and Models, Palisades, New York, June 12-15, 2001.

Controlling current and future diesel emissions and other sources of fossil-fuel particulate black carbon and organic matter as an effective method of slowing global warming, Air Pollution as a Climate Forcing Workshop, East-West Center, Hawaii, April 29-May 3, 2002.

Addressing air quality and climate through soot control, Regional Workshop on Better Air Quality in Asia and Pacific Rim Cities 2002, Hong Kong, December 16-18, 2002.

Climate and air pollution effects of gasoline, hybrid, and diesel vehicles (with and without a trap), Haagen-Smit Symposium, California Air Resources Board, Lake Arrowhead, California, May 6-9, 2003.

Causes of and Solutions to Global Warming, American Enterprise Institute Conference on Climate Change, Washington D.C., November 19, 2003.

Net climate effects of BC and OC 2: Consideration of multiple climatic effects. Air Quality and Climate Meeting on Black Carbon and Organic Carbon: Science, Inventory and Mitigation, U.S. EPA Office of Air Quality Planning and Standards and Office of Atmospheric Programs, Washington, D.C., December 3-4, 2003.

The effect of diesel on air pollution and global climate, Workshop on cruise ship operations, Cruise Terminal Environmental Advisory Committee Meeting, Port of San Francisco, San Francisco, California, January 23, 2004.

The effect of particles on global and California climate, Interncontinental Transport and Climate Effects of Air Pollutants Workshop, Chapel Hill, NC, October 21-22, 2004.

The effects of aerosols on California climate, MODIS Science Team Meeting, Baltimore, Maryland, March 22-24, 2005.

Regional effect of aerosols on winds, precipitation, and climate, 8th International conference of the Israel Society of Ecology and Environmental Quality Sciences, Weizmann Institute of Science, Rehovot, Israel, May 30-June 1, 2005.

Global windpower and its potential effect on the hydrogen economy, 8th International conference of the Israel Society of Ecology and Environmental Quality Sciences, Weizmann Institute of Science, Rehovot, Israel, May 30-June 1, 2005.

Role of aerosols in regional climate: A research frontier, Second Annual Climate Change Research Conference, California Energy Commission and First Scientific Conference, West Coast Governor's Global Warming Initiative, Sacramento, California, Sept. 14-16, 2005.

Apollo Project for Wind Energy and Wind-Hydrogen, J.P. Morgan Public Power and Gas Conference, New York, May 11-12, 2005.

The effects of aerosols on wind speed, temperatures, and water supply in California, Atmospheric Chemistry Workshop, Telluride, Colorado, July 30-August 6, 2006.

Numerical study of the effects of aerosols and irrigation on snow, rain, and regional climate in California, California Energy Commission, Sept. 13-15, 2006.

Effects of future emissions and a changed climate on urban air quality, Environmental Protection Agency, Research Triangle Park, NC, February 20-22, 2007.

The Macro Perspective of Wind Power in the USA, From Local to Global: The Rhode Island Model for Harnessing Wind Power Worldwide, Roger Williams University School of Architecture, Art and Historic Preservation, April 19-20, 2007.

Comparing wind and other energy sources for addressing climate and air pollution, From Local to Global: The Rhode Island Model for Harnessing Wind Power Worldwide, Roger Williams University School of Architecture, Art and Historic Preservation, April 19-20, 2007.

Comparative effects of vehicle fuels and technologies on air pollution and climate, Controlling Global Warming and Local Air Pollution - South Coast Air Quality Management District Technical Forum, Diamond Bar, California, June 28, 2007.

Effects of future emissions and a changed climate on urban air quality, Impacts of Climate Change on Air Quality in the Pacific Southwest, Environmental Protection Agency, San Francisco, California, October 11, 2007.

Comparative effects of vehicle technologies and fuels on climate and air pollution. On the Road to Bali: Strengthening the Transatlantic Climate Cooperation, German Academic Exchange Service (DAAD) and the Heinrich Boell Foundation, San Francisco, California, Nov. 16, 2007.

The effects on health and climate of ethanol versus other vehicle technologies and fuels, Institute of Medicine’s Roundtable on Environmental Health, Sciences, Research, and Medicine workshop on Environmental Health, Energy, and Transportation: Bringing Health to the Fuel Mixture, National Academies Auditorium, Washington, D.C., Nov. 30, 2007.

A solution to the problem of nonequilibrium acid/base gas-particle transfer at long time step. International Aerosol Modeling Algorithms (IAMA) Conference,
Davis, California, Dec. 6, 2007.

Comparative effects of ethanol (E85), gasoline, and wind-powered electric vehicles on cancer, mortality, climate-relevant emissions, and land requirements
in the United States, American Geophysical Union Fall Meeting, San Francisco, California, Dec. 10-14, 2007.

Effects of hydrogen on climate and ozone, Department of Energy, Washington, DC, May 19, 2009.

Quantifying the effects of aircraft on climate with a model that treats the subgrid evolution of contrails from all commercial flights worldwide, Aviation Emissions Characterization Roadmap Meeting, Washington, DC, June 9, 2009.

Review of energy solutions to global warming, air pollution, and energy security, Microsoft Research Workshop, Redmond, Washington, July 13, 2009.

Coupling cloud and aerosol microphysical processes in a nested climate-weather-air pollution model and its implications for the cloud and climate effects of black carbon, European Geosciences Union, General Assembly, 2011, Vienna, Austria, April 3-8, 2011.

A plan for powering the world with wind, water, and sun, Department of Energy Efficiency and Renewables Advisory Committee (ERAC) Electricity subcommittee meeting, San Mateo, California, September 22, 2011.

A plan for powering the world for all purposes with wind, water, and sunlight, The Bottom Line on Climate Change: Transitioning to Renewable Energy, Schwartz Center for Economic Policy Analysis, The New School, New York City, September 24, 2011. (connected remotely)

A plan for powering the world with wind, water, and sun, Managing uncertainty: Integrating intermittent renewable energy into the power grid, Resnick Institute Workshop, California Institute of Technology, Pasadena, California, October 12, 2011.

A plan for powering the world for all purposes with wind, water, and sunlight, American Geophysical Union Fall Meeting, Session GC54, Climate Change: Challenges and Solutions, San Francisco, California, Dec. 5-9, 2011.

A plan for powering the world for all purposes with wind, water, and sunlight, World Renewable Energy Council (WREC) World Renewable Energy Forum 2012, Denver, Colorado, May 14, 2012.

World saturation wind potential and its implications for a sustainable future relying on wind, water, and sunlight producing electricity and electrolytic hydrogen, World Renewable Energy Council (WREC) World Renewable Energy Forum 2012, Denver, Colorado, May 14, 2012.

Testimony at Hearing in front of California Air Resources Board Chairman and Executive Officers on black carbon and methane, Sacramento, California, May 24, 2012. (link)

Powering individual states and the world with wind, water, and sunlight, Increasing value through thermal energy storage, CSP Today, Las Vegas, Nevada, June 26-27, 2013. (link)

Roadmaps for powering the world, U.S., and individual states for all purposes with wind, water, and sunlight, 2013 Gordon Research Conference on Atmospheric Chemistry, Mt. Snow, Vermont, July 29, 2013 (link)

The natural gas goldrush and the future of renewables, Net Impacts Conference, San Jose, California, October 24-26, 2013.

Powering the states, the U.S., and world for all purposes with wind, water, and sunlight, Business for Social Responsibility (BSR) Debate: What does a Low-Carbon Energy Economy Look Like? San Francisco, California, November 6, 2013. (link)

Powering states and the U.S. with wind, water, and sunlight, California Democratic Party Executive Board Meeting, Environmental Caucus, San Francisco, California, November 23, 2013.

Roadmaps for powering the world, U.S., and individual states for all purposes with wind, water, and sunlight, U015. Water, Energy, and Food Security in a Changing World: Finding Solutions Through Integration of Physical and Social Sciences, American Geophysical Union Fall Meeting, San Francisco, California, December 9-13, 2013.

Plans to change the energy infrastructure of the 50 United States, Factory, San Francisco, California, March 12, 2014.

Powering the world with wind, water, and sunlight, Progressive Democrats of America, March 19, 2014 (presented remotely). (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Climate justice conference of solutions, Wesleyan University, April 12, 2014, Webinar (presented remotely). (link)

Roadmaps for transitioning U.S. states to wind, water, and solar power for all purposes, American Wind Energy Association Windpower 2014 conference, Las Vegas, Nevada, May 8, 2014.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Public pension fund investments and renewable energy forum opportunities and challenges, Oregon Office of the State Treasurer, Pegasus Capital, and R20 Regions of Climate Action, Portland State University, June 5, 2014. (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Interfaith Power and Light webinar, October 23, 2014 (presented remotely).

Roadmaps for transitioning Pennsylvania and all 50 U.S. states to wind, water, and solar power for all purposes, Pennsylvanians against fracking, December 3, 2014 (presented remotely). (link)

Addressing global warming, air pollution, energy security, and jobs with roadmaps for changing the all-purpose energy infrastructure of the 50 United States, American Geophysical Union Fall Meeting, San Francisco, California, December 15-19, 2014.

Global direct radiative forcing due to multicomponent anthropogenic and natural aerosols, Department of Oceanography, University of Washington, February 25, 1999.

Studying the effects of soil moisture on ozone, temperatures, and winds in Los Angeles, Dept. of Meteorology, San Jose State University, March 16, 1999.

Examining the causes and effects of ultraviolet radiation reductions in Los Angeles, Dept. of Atmospheric Sciences, University of Illinois, April1, 1999.

Revised estimates of the global direct radiative forcing of aerosols due to a physically-based treatment of elemental carbon optics, Dept. of Geology & Geophysics, University of California, Berkeley, December 8, 1999.

Studying effects of the large scale on air pollution and weather in Northern California during SARMAP with a global-through-urban scale air pollution/weather
forecast model, Environmental Engineering Seminar Series, U. C. Davis, April 10, 2000.

Climate and air pollution effects of black carbon and modern diesel vehicles, Department of Atmospheric Science, University of California, Los Angeles, February 18, 2004.

Climate and air pollution effects of diesel vehicles, and the impact of particle traps and NOx filters, Department of Civil and Environmental Engineering, University of California, Berkeley, March 12, 2004.

Evaluation of proposed energy solutions to global warming, air pollution, and energy security, Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign, February 3, 2009.

Review of energy solutions to global warming, air pollution, and energy security, Webcast to the National Wind Coordinating Collaborative (NWCC), February 10, 2009.

Evaluation of energy solutions to global warming, air pollution, and energy security, Department of Civil and Environmental Engineering Graduate Symposium in Environmental and Water Resources Engineering, University of California at Los Angeles, April 21, 2009.

The enhancement of local air pollution by CO2 domes and the effects of black carbon, the second-leading cause of global warming, Environmental Protection Agency Region 9, San Francisco, California, May 24, 2010.

Powering the world with wind, water, and sun, Singularity University, NASA Ames Research Center, Mountain View, California, July 12, 2010.

A plan for a sustainable future using wind, water, and sun, DECCW Department, Sydney, Australia, August 18, 2010.

Causes of and energy solutions to global warming and air pollution mortality, Modesto Area Partners in Science, Modesto, California, November 19, 2010.

Powering the world with wind, water, and sun, College of Engineering, Systems Engineering Program, Cornell University, Ithaca, New York, February 4, 2011.

Powering the world with wind, water, and sun, Centre for Environment and Sustainability, University of Western Ontario, Ontario, Canada, March 9, 2011.

Powering the world with wind, water, and sunlight, Stanford Alumni Association, Minneapolis, Minnesota, May 15, 2012.

Can the world be powered on renewable energy? Stanford Alumni Association, San Francisco, California, May 18, 2012.

A plan to power the world with wind, water, and sunlight, Ruffalo, M.A., M. Krapels, and M.Z. Jacobson, Talks at Google, Google, Inc., Mountain View, California, June 20, 2012. (video)

A plan to power the world for all purposes with wind, water, and the sun, Leonardo Art Science Evenings (LASERS), University of San Francisco, San Francisco, California, July 9, 2012. (video) (slides)

The effects of black and brown carbon on clouds and global climate, NASA/University of Alabama at Huntsville, National Space Science and Technology Center, Huntsville, Alabama, September 5, 2012. (link)

A plan to power 100 percent of the planet with renewables, University College, Toronto, Ontario, October 15, 2012. (video)

Planning for a sustainable future for states, countries, and the world with wind, water, and the sun, Department of Earth and Environmental Engineering, Columbia University, November 16, 2012.

A plan to power the world, U.S., and California for all purposes with wind, water, and the sun, Friends of Hopkins, Pacific Grove, California, January 8, 2013.

Powering the world, U.S., and individual states for all purposes with wind, water, and sun, NOAA Chemical Sciences Division Seminar, Boulder, Colorado, January 25, 2013. (link)

Black carbon effects on climate, National Association of Clean Air Agencies (NACAA) presentation by conference call, February 13, 2013.

Technical and economic plans to power the world, U.S., and individual states for all purposes with wind, water, and sunlight, Climate Science Program, California State University, Northridge (CSUN), Northridge, California, February 20, 2013. (link)

Powering states and countries with wind, water, and sunlight, Sierra Club Clean Tech webinar, July 12, 2013.

Roadmaps for powering states and countries for all purposes with wind, water, and sunlight, Energy Resources Group (ERG), U.C. Berkeley, Berkeley, California, September 11, 2013. (pdf)

100% Renewable: Roadmaps for powering states, countries, and the world for all purposes with wind, water, and sunlight, British Columbia Sustainable Energy Association, Vancouver, British Columbia, September 17, 2013, webinar. (link)

How to power the world, U.S., and individual states for all purposes with wind, water, and sunlight, Vi Palo Alto Residents’ Retirement Community, Palo Alto, California, October 22, 2013.

Powering states, countries, and the world with wind, water, and solar power, Atlas Awards, Danville, California, November 16, 2013.

Powering states, countries, and the world with wind, water, and solar power, Hudson Valley, New York, November 20, 2013 (connected remotely). (link)

Powering countries, states, and the world with wind, water, and sunlight, University of Calgary, Alberta, Canada, December 6, 2013 (connected remotely). (link)

Roadmaps for transitioning California and the other 49 U.S. states to wind, water, and solar power for all purposes, Bay Area Air Quality Management District, February 13, 2014. (link)

Plans for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Acterra Speaker Series 2014, Mountain View, California, March 5, 2014. (link)

Plan for converting Massachusetts to wind, water, and solar power for all purposes, conference call seminar, March 24, 2014.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, NIEHS Center, University of Southern California, April 4, 2014.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Youngstown State University, Youngstown, Ohio, April 23, 2014 (presented remotely). (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Henry M. Gunn Senior High School, Palo Alto, California, April 29, 2014. (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Barr Foundation, Boston, MA, May 30, 2014, (presented remotely).

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Director’s colloquium Summer Series, NASA Ames Research Center, Mountain View, California, July 8, 2014. (link)

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Stanford Research Institute (SRI) International, Menlo Park, California, July 18, 2014.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Silicon Valley Leadership Group, Santa Clara, California, August 20, 2014.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Tech talk, Access and Energy Division, Google, Mountain View, California, August 21, 2014.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Apple, Inc., October 2, 2014.

. Roadmaps for transitioning all 50 U.S. states to wind, water and solar power for all purposes, Health and Environmental Funders Network (HEFN) Annual Meeting, Los Angeles, California, October 28, 2014 (presented remotely). (link)

Changing the energy infrastructure of the 50 United States to one derived from wind, water and sunlight, Northeast Ohio, January 8, 2015 (presented remotely). (link)

Roadmaps for transitioning all 50 U.S. states to wind, water and solar power for all purposes, Bard MBA Sustainable Business Fridays, January 30, 2015 (presented remotely). (link)

Roadmaps for transitioning the 50 U.S. states and 139 countries to wind, water, and solar power for all purposes, Chinese American Environmental Professionals Association, Oakland, California, March 4, 2015.

Roadmaps for transitioning all 50 U.S. states to wind, water and solar power for all purposes, EWRE Seminar, University of South Florida, Tampa, Florida, March 19, 2015.

Roadmaps for transitioning the 50 U.S. states to wind, water, and solar power for all purposes, Coloradans against fracking webinar, April 13, 2015 (presented remotely). (link)

Roadmaps for transitioning the U.S. and world to wind, water, and solar power for all purposes, California History Center, De Anza College, California, April 14, 2015. (link)

Roadmaps for transitioning 50 U.S. states and 139 countries to wind, water, and solar power for all purposes, Columbus, Ohio, April 27, 2015 (connected remotely). (video)

Roadmaps for transitioning all 50 U.S. states and 139 countries to wind, water, and solar power for all purposes, Lockheed Martin/Advanced Technology Center colloquium, Palo Alto, California, June 4, 2015 (link)

The wind factor: How to stop global warming, Engineering Day, School of Engineering and Engineering Alumni Relations Program, July 15, 2006.

Comparison of the health and climate impacts of using large-scale wind-hydrogen or wind-batter versus ethanol (E85), diesel, biodiesel, and gasoline in modern
vehicles, Wood’s Institute for the Environment Energy Seminar Series, Oct. 4, 2006.

Briefing on renewable energy and the environment to Assistant Secretary of Energy for Renewable Energy, Andy Karsner, Oct. 19, 2006.

Roadmaps for transitioning all 50 U.S. states to wind, water, and solar power for all purposes, Energy Resources Engineering Seminar Series, April 21, 2014 (link)

Repowering the U.S. with wind, water, and solar to address price stability, pollution, climate, and hurricane damage, Stanford advanced workshop on data analytics for the electric grid, Stanford University Energy and Environment Affiliates Program, May 14, 2014.(link)

Roadmaps for powering all countries of the world with 100% wind, water, and solar for all purposes, Energy technology panel on China energy for Guodian Power, Huang Engineering Center, Stanford University, December 15, 2014.

July 12, 2005. Written testimony on a comparison of wind with nuclear energy to the U.S. House of Representatives Subcommittee on Energy and Resource.

October 18, 2007. Oral and written testimony on the role of black carbon as a factor in climate change and its impact on public health. U.S. House of Representatives Committee on Oversight and Government Reform, Washington, D.C. (link)

April 9, 2008. Oral and written testimony on the relative impact of carbon dioxide on air pollution health problems in California versus the rest of the U.S., U.S. House of Representatives Select Committee on Energy Independence and Global Warming, Washington, D.C. (link)

Environmental Protection Agency Testimony

March 5, 2009. Oral testimony invited by the State of California at the Environmental Protection Agency Hearing AMS-FRL-8772-7, California State Motor Vehicle Control Standards; Greenhouse Gas Regulations; Reconsideration of Previous Denial of a Waiver of Preemption, Arlington, Virginia. (link)

Oral testimony at the Environmental Protection Agency Hearing: Endangerment and cause or contribute findings for greenhouse gases under the Clean Air Act, Arlington, Virginia, May 18, 2009. (link)

Government Advisory Boards

United States Department of Energy Office of Energy Efficiency and Renewable Energy (EERE) Federal Advisory Committee (ERAC) to the United States Secretary of Energy, October 2010-August 2012.

City of San Francisco Task Force to Provide 100% Renewable Electricity by 2020, Jan., 2011-May, 2012.

United States Environmental Protection Agency Advisory Council on Clean Air Compliance Analysis, Panel to evaluate a draft EPA report to Congress on the climate and health effects of black carbon, February 9, 2011-April, 2012. (link)